Port (adulte) - Magnus Manske / Wikimedia Commons - CC BY-SA 3.0
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Pois de senteur
Lathyrus odoratus
Une liane annuelle de saison fraîche cultivée pour ses fleurs intensément parfumées — l'épithète spécifique odoratus signifie « parfumé » — portées sur des tiges ailées dont les vrilles permettent aux plants de grimper à 6 à 8 feet en une seule saison. Les cultivars fleurissent dans toutes les couleurs sauf le jaune, de mai à juillet. Une plante délicate par temps chaud et humide : lorsque les températures montent, les plants déclinent rapidement, aussi se sème-t-elle tôt pour un spectacle de saison fraîche. Les fruits en forme de gousse, contrairement aux pois potagiers comestibles, sont non comestibles et toxiques pour l'homme.
Climate fit: moderate (63/100)
Filler
Container
Pollinator
Light
Full sun / Part shade
Water
Consistent moisture
Mature size
36-96" tall · 6" apart
Lifecycle
True annual (one season)
AHS heat range
1-9
Plant range authored in AHS heat-zone terms.
Native in Illinois
No
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Plant support
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Contrairement au pois potager comestible (Pisum sativum), les fruits et les graines du pois de senteur sont non comestibles et toxiques pour l'homme selon le Missouri Botanical Garden PlantFinder.
Cold hardiness
Future
These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
USDA
Published baseline for this location from 1991-2020.
Source: USDA Plant Hardiness Zone Map 2023 (1991-2020 climatology) via ArcGIS FeatureServer
Well-suited
2050
Zone 7a
Plotwright
Projected zone for this same location in 2050 (2041-2070) using SSP3-7.0 (regional rivalry).
Well-suited
In plain terms: This location is in Zone 6b today. Its hardiness profile is cold winters, and coldest nights are typically around -3°F. By 2050, the projected hardiness zone is Zone 7a based on SSP3-7.0 (regional rivalry). That is a +0.5-zone shift from Zone 6b to Zone 7a by 2050.
✓
Well-suited today and still thriving in 2050.
Heat tolerance
Future
Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
Loading AHS heat-zone data for this location...
Where this plant fits
Suitable across 45 ecoregions — 45 climate-resilient through 2070. Best matches first.
Appalachian mixed mesophytic forests
›
Appalachian-Blue Ridge forests
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Arizona Mountains forests
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Atlantic coastal pine barrens
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Blue Mountains forests
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California coastal sage and chaparral
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Canadian Aspen forests and parklands
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Central Pacific Northwest coastal forests
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Central Tallgrass prairie
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Central-Southern Cascades Forests
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Sources & citations
Cite this page
For lesson plans, articles, or research that uses this page. To cite a single upstream fact instead, use its specific source listed below.
Plotwright. (2026, May 17). Pois de senteur (Lathyrus odoratus). Retrieved 2026, June 14, from https://plotwright.garden/plants/lathyrus-odoratus
Sources for every fact
Every fact on this page traces to a source. 18 fields cited - 18 source-backed.
Missouri Botanical Garden PlantFinder
Botanical research database
Backs 17 fields
Identity
Summary
Plant type
Light
Moisture
Hardiness
Heat zone
Size
Spacing
Habit
Design roles
Seasonal interest
Growth stages
Lifecycle
Regional guidance
Success tips
Designer notes